Telegram Mobile — design system & UI screens

Communication · 8 screens · telegram.org

This is a private messaging and chat application with ephemeral messaging features (self-destructing messages). The screen shows a conversation thread with a contact named "Little Sister," displaying a series of messages and media exchanges about gift ideas, with a self-destruct timer feature visible on one message. The layout uses a vertical message stream with alternating message bubbles (user messages in blue on the right, system messages in gray/white), embedded media with countdown timers, timestamps, read receipts, and a message input bar at the bottom with attachment and voice options.

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This is a static, crawlable rendering for search & AI engines. The interactive version — filters, live decode console, copy & export — is at https://mozaika.design/website/telegram-mobile.

Decoded design system

Telegram Mobile's decoded design system: background #FFFFFF, text #000000, accent #192F40, link #192F40, primary #192F40; type scale h1 34px / h2 22px / body 17px; 5px spacing base; 12px base radius. The single interactive/action color is #192F40 — used only on interactive or must-notice elements (buttons, links, key highlights), never on large fills.

Color roles

Role	Value
bg	`#FFFFFF`
surface	`#EFEFEF`
border	`#D8D8D8`
text	`#000000`
text_muted	`#606060`
primary	`#192F40`
accent	`#192F40`
link	`#192F40`
button_bg	`#192F40`
button_text	`#FFFFFF`

Using these colors

Action color #192F40 — the single interactive color; only on things you click or must notice, never large fills.
primary, accent, link, button_bg are all #192F40 — one role, not several (the action color).
accent #192F40 — THE accent / action color — interactive & must-notice only (buttons, links, focus, one key highlight); never large fills or backgrounds. Scarcity is what makes it read as designed.

Typography

h1: 34px
h2: 22px
body: 17px

Spacing

base unit: 5px
scale: 5px, 9px, 10px, 14px, 15px, 16px, 17px, 20px, 28px, 34px

Radii

base: 12px
button: 12px

Shadows (elevation)

subtle: rgba(0, 0, 0, 0.1) 1px 1px 3px 1px

Motion

Micro-interactions run at 100ms (dominant) with ease-in-out.

durations: 100ms · 200ms · 150ms
easings: ease-in-out · ease
animated properties: opacity, box-shadow, transform

Native design tokens

Token	Value
`--bullet-color`	`#0088cc`
`--native-font`	`-apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif`
`--native-mono-font`	`ui-monospace, "SFMono-Regular", "SF Mono", Consolas, "Liberation Mono", Menlo, monospace`
`--doc-font-size`	`15px`
`--doc-space`	`16px`
`--side-nav-font-size`	`13px`
`--side-nav-width`	`240px`
`--side-nav-top`	`72px`
`--side-nav-right`	`16px`

Layout (measured)

container max-width: 925px

Motion choreography (measured)

Load order: div.tl_main_logo

Responsive (measured)

breakpoints: 480px · 640px · 768px · 992px · 1200px
mobile (390px): nav inline

Full design system, per-section tokens & DESIGN.md / Tailwind / CSS exports →